Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 1 15.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2022   02:29:45   ( -70.83, -37.63) 01/17/2022   02:30:38  ( -70.82, -37.59)    1.35                53
 01/17/2022   03:20:29   (  70.71, 129.87) 01/17/2022   03:20:05  (  70.72, 129.90)    1.60                24
 01/17/2022   04:10:56   ( -69.75, -61.32) 01/17/2022   04:09:50  ( -69.78, -63.82)   96.25                66
 01/19/2022   17:56:55   (  70.82, -89.39) 01/19/2022   17:57:36  (  70.84, -89.33)    3.02                41
 01/19/2022   18:47:38   ( -70.70,  78.12) 01/19/2022   18:47:06  ( -70.73,  78.13)    3.04                32
 01/22/2022   09:24:04   ( -70.81,-141.14) 01/22/2022   09:24:38  ( -70.78,-141.19)    3.30                34
 01/22/2022   10:14:48   (  70.70,  26.35) 01/22/2022   10:14:05  (  70.67,  26.30)    3.34                43
 01/25/2022   00:51:14   (  70.81, 167.08) 01/25/2022   00:51:35  (  70.83, 167.13)    2.64                21
 01/25/2022   01:41:57   ( -70.69, -25.40) 01/25/2022   01:41:06  ( -70.67, -25.48)    3.65                51
 01/27/2022   15:27:49   (  71.45, -53.10) 01/27/2022   15:28:58  (  71.31, -51.53)   58.07                69
 01/27/2022   16:18:22   ( -70.81, 115.32) 01/27/2022   16:18:35  ( -70.82, 115.34)    1.62                13
 01/27/2022   17:09:06   (  70.70, -77.19) 01/27/2022   17:08:02  (  70.71, -77.18)    1.02                64